Gas-furnace.



A. K. LINDLBY.

GAS FURNAGB.

APPLICATION FILED 11u11, 19114 1,026,314, Patented May 21, 1912,

m z3 m i 50 UNITED sTArE'sPATENT oEEIoE.

ANDREW K. LINDLEY, 0E Los ANGELEs, CALIFORNIA, AssIGNoR 0E ONE-HALE tro IvIAEEL E. sHARP, 0E Los ANGELES, CALIFORNIA.

GAS-FURNACE.

Specification of Letters Patent.

Application led May 11, 1911.

Patented May 21, 1912.

Serial No. 626,475.

To all whom t may concern:

Be it known that I, ANDREW K. LINDLEY, a citizen of the United States, residing at Los Angeles, State of California, have invented new and. useful Improvements in Gras-Furnaces, of which the following is a specification.

This invention relates to improvement-s in furnaces and particularly to gas furnaces or furnaces of the type which are especially adapted for use in connection with gas or other burners.

It is an obj eet of the invention to provide a furnace mechanism which will receive and distribute to the best advantage the heat units developed by a gas or other hydro-carbon burner.

It is also an object of the invention to provide a furnace with tubing and baffle means which will direct the heat developed by a burner in such a manner as to make the heat units available for properly heating a house or structure.

In the accompanying drawing forming a part of this specification; Figure 1 is a view partially in vertical central section, and partially in elevation, some of the walls being broken away to better reveal the interior structure of the furnace forming the subject matter of the present invention. Fig. 2 is a transverse sectional view taken upon the line 2-2 of Fig. 1.

The details of the invention will now be more particularly described, reference being had to the said drawing in which the preferred form of the structure has been illustrated.

In the said drawing 5 indicates a burner of any desired type and may be such as is adapted for use in connection with gas or hydro-carbon oils or the like, and the said burner is mounted in any suitable manner within the base portion of the furnace, the combustion chamber inclosing the same usually consisting of a base plate or standard 6. The said standard is generally provided with short supporting legs 7, for lifting the base slightly above the surface upon which the furnace is mounted.

A cylindrical casing 8 rests upon the base 7 forming the side walls of the combustion chamber, while an arched plate 9 is arranged upon the upper edge of said casing 8 forming a dome for the combustion chamber. The said plate 9 is provided with a central aperture 10, which provides for the outlet of heat from the combustion chamber into the upper part of the furnace structure. The combustion chamber is also provided with a door 11 having apertures formed therein as at 12, through which communication is had with the burner, for supplying fuel and air thereto necessary for combustion.

Above the dome 9 an air chamber is arranged, a section of the furnace casing as 13 being mounted upon the said arched plate 9, which easing is provided with air inlet openings 14. Mounted upon the casing 13 is the lower head 15 of a tubular heater section which forms the greater portion of the upper part of said furnace. The said head 15 supports an outer inclosing easing 16 and is provided with a central aperture or passageway 17 through which the heat from the combustion chamber passes. The said eentral apertured portion of the head 15 is connected by a pipe or casing 17a with the outlet aperture 10 in the arched plate 9. By this means the heat from the burner will not escape into the space between the arched plate 9 and the head 15. The head 15 is also provided with a series of apertures 18 and 19, having I flanges projecting upwardly around the same and thus adapted to receive hot-air flues or pipes 20 and 21. As many of the said apertures and hot-air flues may be arranged around the central portion of the furnace as is desired, and a large number of said apertures and flues is usually provided as shown in Fig. 2. The cap plate 22 is mounted upon the upper edge of the casing 16, and serves to close the space within the said casing 16, and the said cap is also provided with a series of flanged apertures 23 and 24 which engage the upper ends of the flues 20 and 21. In this manner air which enters the apertures 111, can pass upwardly through the hotair flues 20 and 21 and thence outwardly through the apertures 23 and 24.

Extending above the opening 17 is a central heat flue 25 which is held in place by a iange surrounding the said opening 17. The flue 25 extends upwardly to a point near the cap plate 22. The cap plate 22 is also provided with a depending apron or baille drum 26 which is secured to a flange 27 formed upon the under side of the cap plate 22. The said baffle drum 26 extends downwardly to a point a short distance above the head 15 as clearly shown in Fig. 1. By this arrangement of the flue 25 and the baffle drum 26, the heat from the combustion chamber is first conducted to the top of the furnace and then must pass downwardly around the inner hot air flues 21 to escape from the baffle drum 26. The heat will then be distributed among the flues and pass upwardly to the top of the furnace where it will escape through a flue 31 and may be discharged at any desired or suitable point.

The furnace is preferably inclosed in an outer casing 28, which may be made to rest upon the floor or ground outside the base 6 and extends upwardly a suitable distance above the furnace as shown in Fig. 1. The lower portion of the casing 28, is provided with one or more air inlets as 29 and air entering the said casing will thus take up any heat units that escape through the outer casing of the furnace proper.. Theupper end of the said casing 28 is in position to collect the heated air which passes through the flues 20 and 21, and distributing heat pipes or flues 30 are usually provided and arranged to extend fro-m the top of the casing 28, to different portions of a building or other structure which is to be heated.

It will be observed that the structure is such that the heat developed by the use of an ordinary burner is utilized and collected to the best advantage for a proper distribution of the same where desired.

What I claim is:

ll. A furnace structure, comprising a combustion chamber adapted to receive a burner having a dome shaped cover with a central outlet, a heating drum mounted above the combustion chamber and arranged to leave an air inlet space between its lower end and the dome shaped cover of the combustion chamber, a perforated casing for supporting the drum above said space and yet admitting air thereto, the said heating drum having longitudinally extending air heating flues arranged in concentric rows, a baflie apron extending between the said concentric rows, a central flue extending into said apron from the outlet of the combustion chamber, and a smoke outlet carried by the said heating drum.

2. A furnace structure comprising a base, a sectional casing mounted thereon, made up of a lower section an intermediate section and a top or drum section, a dome plate mounted upon the lower section and having a central flue opening therein, a lower drum head mounted upon the intermediate section, the said intermediate section resting upon the said dome plate and having apertures formed therein for admitting air to the space between the said dome plate and the said lower drum head, the said lower drum head having a central flue opening corresponding with the flue opening in the dome plate, a pipe section connecting the opening in said plates, an upper drum head mounted upon the upper casing or drum section, the said drum plates having oppositely arranged heat flue apertures, hot air pipes connecting said apertures and permitting the air which is heated between the dome plate and the lower drum head to pass upwardly through the said drum, a flue pipe extending into the drum from the central Hue aperture of the lower drum plate, a depending baffle drum extending downwardly from the upper drum head and between the rows of hot air pipes, the upper casing section having a smoke flue extending outwardly therefrom and an outer .1nclosing casing surrounding the sa1d cas1ng sections and having means for directing the hot air to the place desired.

In witness that I claim the foregoing I have hereunto subscribed my name this 3rd day of May, 1911.

ANDREW K. LINDLEY. Witnesses:

EDMUND A. STRAUSE, EARLE R. PoLLARD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

